package com.uinfor.controller;


import com.uinfor.entity.Payment;
import com.uinfor.entity.Result;
import com.uinfor.lb.LoadBalance;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cloud.client.ServiceInstance;
import org.springframework.cloud.client.discovery.DiscoveryClient;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

import javax.annotation.Resource;
import java.net.URI;
import java.util.List;

/**
 * @descripttion:
 * @Author: WZH
 * @Date :2021/1/18  14:01
 **/
@RestController
@Slf4j
public class OrderController {
    //单机版
//    public static final String PAYMENT_URL="http://localhost:8001";
    //集群版
      public static final String PAYMENT_URL="http://CLOUD-PAYMENT-SERVER";
      @Autowired
      private RestTemplate restTemplate;
      @Resource
      private LoadBalance loadBalance;
      @Resource
      private DiscoveryClient discoveryClient;

      @GetMapping("/consumer/payment/create")
      public Result<Payment> create(Payment payment){
//          return restTemplate.postForObject(PAYMENT_URL+"/payment/create",payment,Result.class);
          return restTemplate.postForEntity(PAYMENT_URL+"/payment/create",payment, Result.class).getBody();
      }
      @GetMapping("/consumer/payment/get/{id}")
      public Result<Payment> getPayment(@PathVariable("id")Long id){
//          return restTemplate.getForObject(PAYMENT_URL+"/payment/get/"+id,Result.class);
          return restTemplate.getForEntity(PAYMENT_URL+"/payment/get/"+id,Result.class).getBody();
      }
      @GetMapping("/consumer/payment/lb")
      public String getPaymentLb(){
          List<ServiceInstance> instances=discoveryClient.getInstances("CLOUD-PAYMENT-SERVER");
          if (instances==null||instances.size()<=0){
              return null;
          }else {
              ServiceInstance instance = loadBalance.instance(instances);
              URI uri = instance.getUri();
              return restTemplate.getForObject(uri+"/payment/lb",String.class);
          }
      }
    @GetMapping("/consumer/payment/zipkin")
    public String getPaymentZipkin(){
//          return restTemplate.getForObject(PAYMENT_URL+"/payment/get/"+id,Result.class);
        return restTemplate.getForObject("http://localhost:8001"+"/payment/zipkin",String.class);
    }
}
